Yarn-moistening device for knitting machines



Feb. 7, 1928.

J. C. CROWTHER YARN MOISTENING DEVICE FOR KNITTING MACHINES Filed Dec. 13. 1926 Joseph C CrowZ/zer 7)" INVENTQR ATTORNEY Patented Feb. 7, 1928.

UNITED STATES PATENT OFFICE.

JOSEPH O. CROWTHER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO BACHMANN 3308., INC., OFIPHILADELIHIA, PENNSYLVANIA, A COIRLEORA'J.ION OF PENNSYIP VANIA.

YABN-MOISTENING DEVICE FOR KNITTING MACHINES.

Application filed December 13, 1928. Serial No; 154,587.

The present invention is adapted for use.

in connection with knittin machines, and it relates to an improved moistener for maintainin the silk yarn in perfect knittmg condition. By not keeping the yarn moist, 1t incessantly breaks, hence interruptlng the knitting machine in its operations. The moisteners nOW in useconsist of a cup base, a glass cylinder, and a cap for the latter, and many of such cylinders in being transported to knitting factories, are received broken, which is a great loss to the factory, if not made good; and are received in good condition, due to their trangibility, readily break as a result of rough usage by those operating the knitting machines. Also it is necessary to dismantle the entire moistener now used, for the purpose of refilling the same with water or other moistening fluid, and it is, at the time of dismantling the now used moisteners, that they receive the most rough usage, especially when reassembling the moisteners. Furthermore such glass cylinders sweat or perspire which permits evaporation of the moisteningfluid to more easily take place, hence necessitating replenishing the fluid quite frequently. 1 v

lt is the purpose of this particular inven tion-to overcome the above disadvantages, and in accomplishing this result it is the aim to provide a cylinder constructed of any suitable non-frangible composition material of a transparentcharacter, preferably such as celluloid. zyl, zylonite, cellulose or the like, which is non-perspiring, thereby great- I ly relieving the evaporation of the moistening fluid, and also lessening the necessity of replenishing the cylinder with such fluid.

those which By constructing the cylinder ofnon-frangi as to afiord a passage for the moisteningfluid, to enable it to seek its level within the cylinder.

It is to be understood that the particulars herein given are in no way limitive and that while still keeping within the scope of the invention, any desired modification of details and proportions may be made in the construction of the device according to circumstances.

The invention comprises further features and combinations of parts to be hereinafter set forth, shown in the drawing and claimed.

In the drawings:

Figure 1 is a view in perspective of the improved yarn moistener for knitting machines constructed in accordance with the invention.

Figure 2 is a sectional view through the moistener, more clearly showing the concavity of the disk 6.

Figure 3 is a sectional view of an entire moistener wherein the disk 6, is constructed flat, showing a felt washer between the base of the bobbin and the disk.

Figure 4 is a detail sectional view showing a modified structureof mounting a bobbin -supporting disk on an upstanding support which rises from the bottom of the base cup. Figure 5 isa detail sectional view through another modified structure for mounting the disk shown in Fig. 4. V

Figure 6 is a detail sectional view of still another modified arrangement for mounting the disk shown in Figures 4, and 5.

Referring to the drawing, 1, identifies a base cup, which is supported on the trams of a knitting machine. This base cup constitutes an element of the yarnmoistener, which also includes an open ended transparent cyllnder to be constructed of any suitable non-frangible non-perspiring composition material. As disclosed in the drawmg this cylinder 2', is inserted into the base cup, which may be constructed in any manner, preferably spun from one piece of metal without seams. thereby avoiding leakage.

The lower interior corner 3, of the cup base isarcuate in cross section, which acts to limit the cylinder 2, in its insertion into the cup base or base cup, which allows the moistening fluid such as water to seep through in order that it may seek a level a trifle below a flared margin 4, of the base cup.

the strand of silk yarn 20,

This flared margin acts to ide the cylinder in its insertion into the ase cup, when assembling the moistener.

At a suitable location on the base cup, the

flared margin merges into a filling s out 5,

enabling the moistener to be easily filed or refilled with moistening fluid without disniantling the moistener.

the disk 6, the under surface of which is pref- I erably flush with the edge of the flared margin 4, though not necessarily, as it is obvious that the upper face of the disk may be flush with the edge of such margin, or slightly below the edge. a

In some instances the disk 6, may simply rest on thesupport 7, as shown in Figures 1, and 2, or may be riveted at 8, to the support 7, as shown in Figure 4.

. It may be possible to mount the disk 6, on the support 7, by providing the support with a flanged opening 9, the flange 10, thereof being peened or swaged over on the disk 6 as shown in Fi re 5. 1

Another modi ed structure of mounting the disk 6, is disclosed in Figure 6, and consists of providing the disk 6, with a flanged o enin 11, the flange12, of which asses t roug the upper wall of the support and is peened over. In other words the structure in Figure 6, is simply a reversal to that in T Figure 5.

As previously noted the disk supports a bobbin 13, on which silk yarn is wound, there being a suitable washer 14 as in Fig. 3, of any thickness and diameter. This washer is constructed of any suitable material, pref-v transmitted to the bobbin through capillary attraction and hence to the silk yarn.

A suitable spindle 15, may be carried by the frame of the knitting machine in a conventional manner, and this spindle passes through the su port 7, and through the disk 6, and felt was er-14 as in Fig. 3, the bobbin 13, being telescopically mounted. thereon.

A cap 16, provided with a flange 17, fits the upfper open end of the cylinder 2, and is spun rom a single piece of metal without seams. The ca has a central opening 18, themargin of w ich is peened over as shown at 19, the opening 18, actin as a guide for om the bobbin, as it feeds to the knitting machine not shown. 7

The cylinder 2, in its construction may have a single vertical seam 21, though not necessarily, as it is possible to make this cylinder seamless through the medium of any conventional method, for instance by an extruding process.

As a further purpose of this improved moistener, the structure thereof as described tends toward preventing the surface of the moistening fluid from seeking a substantial higher level than the supporting disk for the bobbin which" carries the silk yarn. Also there is a slight vibration to the frame of the knitting machine, which acts to a 'tate the moistening fluid and thereby ena ling the silk yarn to more readily gather the moisture.

In order to prevent the strand of silk yarn, as it leaves the bobbin, from wed ing tween the margin of the base of the bobbin and the disk, the latter is concaved, with the base of the bobbin at its margin resting on the surface of the concavity of the disk, with the marginafl portion of the disk extending slightly upwardly and beyond the edge of t e base of the bobb1n, hence preventing the yarn from binding between the bobbin and the disk.

In Figure 3, the concaved disk is eliminated and in lieu thereof a flat disk 6,

is employed with a felt washer between the g disk and the base of the bobbin.

The invention having been set forth, what is claimed is:

1. A yarn moistener for a knitting machine, including a base cup and a cap, the base cup adapted to operatively support a bobbin of yarn and a transparent non-frangible cylinder supported between the base cup and the cap.

2. A yarn moistener for a knitting machine including a non-pers'piring transparent cylinder, a base cup adapted to operatively support a bobbin of yarn and cap for the cylinder.

3. A yarn moistener for a knitting machine including a non-perspiring non-frangible transparent cylinder, a separable base cup adapted to operatively sup ort a bobbinof yarn and a cap for the cy inder.

4. A yarn moistener for 'a knittin machine including a transparent cylinder, :1 base cup adapted to operatively support a bobbin of yarn and cap engaging with the.

opposite ends of the cylinder, said cup having a filling spout, whereby the cup may be filled without dismantling the structure of the yarn moistener. v

5. A yarn moistener for a knitting machine including a cylinder for housing the yarn on a bobbin, a cap for the cylinder, and a base cup to operatively support a bobbin of yarn, and being separable from the lower end of the cylinder, said base cup provided with means to permit the cup to e filled with moistening fluid without dismantling the moistener and removably lifted with means to permit the cup to be filled with moistening fluid without dismantling the moistener;

7. A yarn moistener for knitting machines including a non-frangible transparent cylinder for housing the yarn on a bobbin, a cap for the cylinder, and a base cut provided with a filling spout to permit the cup to be filled with moistening fluid without dismantling the moistener.

8. A yarn moistener for knitting machines including a transparent cylinder for housing the yarn on a bobbin. a cap for the cylinder, and a base cup for the cylinder provided with a flared margin to permit the cylinder to be inserted readily into the base cup when assembling the moistener.

9. A yarn moistener for knitting machines including a transparent cylinder for housing the yarn on a bobbin, a cap for the cylinder, and a base cup for the cylinder and provided with a flared margin to permit the cylinder to be inserted readily in the base cup when assembling the moistener, said flared margin merging into a filling spout at a suitable location on the base cup to permit the cup to be filled without dismantling the moistener.

10. In a yarn moistener for knitting machines, the combination with a transparent open ended cylinder, of a cap for the cylinder, a base cup for the cylinder, means within the base cup interiorly of the cylinder for the support of a bobbin of yarn, said base cup provided witha flared margin to permit easy insertion of the cylinder into the base cup, said flared margin merging into a filling spout to permit'the moistener to be supplied with moistening fluid Without dismantling the moistener.

1].. ln a yarn moistener for knitting machines, the combination with a non-frangible transparent open ended cylinder, of a cap for one end of the cylinder. a base cup for the opposite lower end of the cylinder, means within the base cup interiorly ot the cylinder for the support of a bobbin of yarn, said base cup provided with a flared margin to permit easy insertion of the cylinder into the base cup, said flared margin merging into a filling spout to permit the molstener to be supplied with moistening fluid without dismantling the moistener.

12. In a yarn moistener for knitting machines, the combination with a non-frangible non-perspiring transparentopen ended cylinder, of a cap for one endof the cylinder,a base cup for the opposite lower end thereof, means within the base cup interiorly of the cylinder for the support of a bobbin of yarn, said base cup provided with a flared margin to permit easy insertion of the cylinder into the base cup, said flared margin merging into a filling spout to permlt the moistener to be supplied with moistening fluid without dismantling the moistoner.

13. In a yarn moistener for knitting machines, the combination with a transparent open ended cylinder, of a cap for one end of the cylinder, a base cup for the opposite lower end, means within the base cup interiorly of the cylinder for the support of a bobbin of yarn, said base cup provided with a flared margin to permit easy insertion of the cylinder into the base cup, said flared margin merging into a filling spout to permit the moistener to be supplied with moistening fluid without dismantling the moistener, said means comprising an upstanding support on the bottom of-the base cup, a disk, and means for mounting the disk on the upstanding support 14. A yarn moistener for knitting machines including a non-frangibletransparent cylinder for housing the yarn on a bobbin, a cap for the cylinder, a base cup provided with a filling spout to permit the cup to be filled with moistening fluid without dismantling the moistener, and means to permit the moistening fluid to enter and elevate to the desired level within the cylinder.

15. A yarn moistener for knitting machines including a non-frangible transparent cylinder for housing the yarn on a bobbin, a cap for one end of the cylinder, a base cup for the opposite lower end thereof and provided with a filling spout to permit the cup to be filled with moistening fluid without dismantling the moistener, means to permit the moistening fluid to enter and elevate to the desired level within the cylinder, and

vchines including a transparent open ended cylinder, a cap therefor. a base cup with a disk supported therein. the disk being concave, permitting only the marginal edge of the base of the bobbin to engage therewith,

hence preventing the strand of yarn from binding between the bobbin and the disk.

\ In testimony whereof I aflix my signature.

JOSEPH C. CROWTHER. 

